Aviation experts are warning that air traffic across western Europe may continue to be affected by an Icelandic volcano, which has been billowing clouds of ash and spreading it throughout the region.

An approximate depiction of the estimated ash cloud, as of 18.00 UTC.

Experts say that the Eyjafjallajökull volcano, located in Iceland, continues to have "sporadic eruptions"; dark ash clouds have been moving south and east of the area, causing mass flight cancellations all over Europe, spanning from the UK to Russia over fears that the soot may be catastrophic to planes - such as causing engines to fail in-flight or severely reducing the pilot's visibility.

The ash clouds are drifting between six to nine thousand meters above the ground, and are moving eastwards, over northern France and Austria and towards Russia at about 40 kilometers per hour.

Already, thousands of passengers have been left stranded around the world, unable to travel to and from various points in Europe. The continent's air-traffic control center predicted 17,000 flights to have been cancelled on Friday alone, and indicated there would be further disruption today. The cancellations are costing airlines about US$200 million daily, the International Air Transport Association reports.

A global association of air traffic control companies commented that ash clouds would probably continue to affect flights for some time. "The knock-on effect of the volcanic ash plume over northern Europe is likely to disrupt European airspace for several days," the Civil Air Navigation Services Organization said in a statement. "Traffic will have to be reorganized and rerouted and flights preplanned, all on a dynamic and quite unpredictable basis."

"The skies are totally empty over northern Europe," said Eurocontrol's deputy head, Bryan Flynn. The agency said more than half of Europe's average 28,000 daily flights were cancelled yesterday, twice as many as were called off on Thursday.

In a special report, Wikinews takes a look at how different countries have been affected by this event.

All of Germany's sixteen airports with international flights have been shut down today, including the busy Frankfurt airport. A spokesman for carrier Lufthansa says all of its flights were cancelled until no sooner than 20.00 local time (18.00 UTC). He said that there were no planes from the airline in the air anywhere on the globe. "There has never been anything like this," he said.

Icelandic airports are open, despite being in such close proximity to the billowing volcano, as the winds are blowing ash clouds away from the vicinity.

The Icelandic Met Office's Matthew Roberts, told the BBC that the volcano hasn't been expending as much ash, and that the eruption was slowing down.

Icelandic officials are urging local residents with respiratory problems to refrain from going outdoors, and encourages the use of protective goggles and masks to those who do go out.

Most disruption in the country has actually been to ground, not air, traffic. Local police chief Kjartan Thorkelsson commented: "We had to close roads because of the ash yesterday [Thursday], even though it was not very thick." He added that the ash "is particularly dangerous for animals, since it can go into water and the grass they eat, [but] [i]t is not as dangerous to humans".

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Experts suggest that occasional disruptions are possible throughout the next half year, should Eyjafjallajokull continue to erupt. Another concern is that it may trigger an eruption from the larger Katla volcano nearby, which has occurred every time Eyjafjallajokull has erupted for the past few centuries.

Even countries as far away as Japan were affected by the ash clouds. A correspondent for the BBC, in Tokyo's Narita Airport, says that many travellers en route to Europe had to spend the night in the departure lounge because their flights were cancelled: "Airlines have handed out sleeping bags and blankets but there have been complaints there aren't enough to go round. The longer the airports are closed the longer the backlog of passengers builds up," he reports.

Polish authorities have suggested that they will delay the funeral of deceased president Lech Kaczynski, who died in a plane crash in Russia last week. Many world leaders planning to attend the funeral might be prevented from doing so due to the ash clouds. Poland was one of twelve to close down most or all of its airspace.

The president's family, however, has insisted the ceremony, to be held in Krakow, proceed as planned.

Mass cancellations at Heathrow Airport; only a few flights have not been called off.Image: KTo288.

The UK's National Air Traffic Service (NATS), says that its restrictions on airspace in the country would remain in effect until no sooner than 13.00 UTC today. Travel bans for Northern Ireland and Scotland have been lifted, although NATS stressed that this does not necessarily mean flights to and from the area will actually resume.

Ryanair, meanwhile, cancelled all its northern Europe flights until 13.00 on Monday. British Airways called off all of its flights from London airports.

UK ferry operators saw a jump in bookings as stranded air travellers sought other ways to cross the English Channel.

A spokesman with the British Civil Aviation Authority commented that, [i]n terms of closure of airspace, this is worse than after 9/11. The disruption is probably larger than anything we've seen."

A correspondent for Al Jazeera reporting from London Heathrow airport described stranded travellers' attitude as being "increasingly frustrated". He remarked: "Some sources I've been speaking to have been indicating that this will probably be extended further. There may be intermittent disruptions to flights for months to come."

The Icelandic volcano may cause the US to experience volcanic sunsets. Vulcanologist Jay Miller claims, "Once it stops erupting it will take a few days to settle out. As long as there's ash in the atmosphere or any pollutant for that matter, you'll see these alterations in the color we see in the sky."

Brian Toon of University of Colorado, Boulder, says: "It's unlikely any of this volcanic ash will get as far as the United States. But it is possible. It's just rare. It's likely the stuff will get washed out before it ever gets here."

American Airlines, in the meantime, announced it had cancelled 56 of its flights to and from Europe today, and the same amount yesterday; countries to which flights were not called off were Italy and Spain. US-based airlines make 337 flights between Europe and the US daily; of those, 280 were cancelled yesterday, the Air Transport Association of America says.

The Icelandic volcano has not caused many problems in Chile. SCL reported to El Mercurio that just a flight has been cancelled. The flight was operated by Air France, that may had went at the 16:00 local time to France. "We don't know if this suspended flight will go, yet," SCL reported, and warranted that "Air France is not going today." SCL also stated that has not been cancelled any other flights, but that could change as the time goes by.

Articles presented on Wikinews reflect the specific time at which they were written and published, and do not attempt to encompass events or knowledge which occur or become known after their publication.

Articles presented on Wikinews reflect the specific time at which they were written and published, and do not attempt to encompass events or knowledge which occur or become known after their publication.